books.google.comhttps://books.google.com/books/about/Introduction_to_the_national_arithmetic.html?id=S0vdDazFmgkC&utm_source=gb-gplus-shareIntroduction to the national arithmetic, on the inductive system

Page 209 - Compute the interest to the time of the first payment; if that be one year or more from the time the interest commenced, add it to the principal, and deduct the payment from the sum .total. If there be...

Page 136 - The Greatest Common Divisor of two or more numbers is the greatest number that will exactly divide each of them. Thu4, 18 is the greatest, common divisor of 36 and 54, since it is the greatest number that will divide each of them without a remainder.

Page 209 - But if any payments be made before one year's interest hath accrued, then compute the interest on the principal sum due on the obligation for one year,* add it to the principal, and compute the interest on the sum paid from the time it was paid up to the end of the year ; add it to the sum paid, and deduct that sum from the principal and interest added together.